Entec EVRC2A-N6-NT - Page 149

RECLOSER CONTROL EVRC2A-N6,NT http://www.entecene.co.kr
139
ENHANCED TECHNOLOGY
Negative Sequence Fast Time Overcurrent Setup
The following setting is used to program the negative sequence fast time overcurrent element.
PRIMARY SETTING / PROTECTION / NEG SEQ FAST / Function
Range
TRIP, TR&AR
Default
TRIP
Step
~
If function = Trip, the feature is operational. When the feature asserts
a TRIP condition, Trip operates.
If function = Trip & AR, the feature is operational. When the feature
asserts a TRIP condition, TRIP and any other selected output relays
operate.
PRIMARY SETTING / PROTECTION / NEG SEQ FAST / Relays(0-8)
Range
OFF, 0 ~ 8
Default
OFF
Step
1
Selects the relays required to operate when the feature generates a Trip.
PRIMARY SETTING / PROTECTION / NEG SEQ FAST / Curve
Range
ANSI-MI, ANSI-NI, … , KG(165)
Default
ANSI-STI
Step
~
Select the desired curve type :
ANSI : Moderately, Normally, Very, Extremely, Short Inverse,
Definite Time(1s ,10s)
IEC : Standard, Very, Extremely, Long, Short Inverse
ESB : Normally, Very, Long Very Inverse
User programmable curves : U1,U2,U3,U4
McGraw-Edison : Non Standard Curves 37
PRIMARY SETTING / PROTECTION / NEG SEQ FAST / Time Dial
Range
0.05 ~ 15.00
Default
0.50
Step
0.01
A time dial setpoint allows shifting of the selected base curve in the
vertical time axis.
[NEG SEQ FAST]
Relays(0-8): OFF
Curve: ANSI-SI
>Time Dial: 0.50
[NEG SEQ FAST]
Function: TRIP
Relays(0-8): OFF
>Curve: ANSI-STI
[NEG SEQ FAST]
Function: TRIP
>Relays(0-8): OFF
Curve: ANSI-STI
[NEG SEQ FAST]
>Function: TRIP
Relays(0-8): OFF
Curve: ANSI-STI